CN

C229PSB/PSE/PSH Board

Lower Case

C229MAIN Board

Figure 4-7. C229PSB/PSE/PSH Board Removal

Lower Case

C229MAIN Board

Figure 4-7. C229PSB/PSE/PSH Board Removal

4.2.7 ROM Removal

^WARNING

M Before disassembling, assembling or adjusting the printer, disconnect the power supply cable from the AC power socket. Failure to do so might cause personal injury.

M Do not touch the heat sink attached to the switching FET (Q1) on the power supply board right after power off, since it may be very hot.

M Never touch the heat sink attached to the switching FET (Q1) while the AC power cable is connected to the AC outlet, since it is not electrically isolated.

1. Remove the PAPER GUIDE ASSEMBLY, top cover, front cover, paper eject cover, knob and tractor unit. (See Section 4.2.3.)

2. Remove the upper housing. (See Section 4.2.4.)

3. Remove 5 CBS (M3 x 4) screws and 3 CBB (3 x 12) screws securing the shield cover to the printer mechanism and lower housing and remove the shield cover. (See Section 4.2.5.)

4. Remove the ROM from the C229MAIN Board.

4.2.8 Platen Removal

1. Remove the PAPER GUIDE ASSEMBLY, top cover, front cover, paper eject cover, knob and tractor unit. (See Section 4.2.3.)

2. Remove the upper housing. (See Section 4.2.4.)

3. Remove 2 CBS (M3 x 8) screws securing the COVER,PLATEN.

4. Rotating the teeth of the PLATEN SHAFT HOLDERs forward, disengage them from the Left/Right Side Frame.

5. Slide the PLATEN right a little and remove it by lifting it up.

ADJUSTMENT^-

After replacing the platen, perform the platen gap adjustment. (Refer to Chapter 5.)

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